Mexico & C. Amer. & Carib
ISciences staff
Mexico, Central America, & the Caribbean: ...

Severe to exceptional surplus will affect several regions of southern Mexico and Central America. Severe to exceptional deficits will continue in northwestern and central areas of Mexico. 

Mexico, Central America, & the Caribbean: Surplus emerges throughout S Mexico, Central America
Europe
ISciences staff
Europe: Deficits to occur in E Europe

Widespread severe to exceptional surpluses in western and central Europe will mostly resolve, becoming near-normal conditions. Eastern European countries are expected to observe widespread deficits of varying intensity. 

Europe: Deficits to occur in E Europe
Australia & New Zealand
ISciences staff
Australia & New Zealand: Surplus continues ...

Moderate to severe surpluses will remain in northern areas of Australia.  

Australia & New Zealand: Surplus continues in N Australia
South America
ISciences staff
South America: Deficits persist in Amazonas, ...

Exceptional deficits will continue in Amazonas and the Bolivarian Nations, but will diminish in size.  

South America: Deficits persist in Amazonas, Bolivarian Nations
Canada
ISciences staff
Canada: Deficits persist in Prairie Provinces, ...

Exceptional deficits will remain in several areas of the Prairie Provinces, as well as in regions of central and eastern Canada. Severe to exceptional surpluses will continue in various regions of Nunavut. 

Canada: Deficits persist in Prairie Provinces, C and E Canada

Rio Negro

South America: Water deficits forecast to diminish considerably but persist in Brazil

South America: Water deficits forecast to diminish considerably but persist in Brazil

A significant retreat of exceptional deficits is forecast November through January, though deficits are forecast for much of Brazil’s northern half and along its southeast coast from São Paulo to Rio de Janeiro. Intense surpluses are forecast for central Colombia and Venezuela’s northeastern coast into Trinidad and Tobago. Moderate surpluses are forecast for northern Peru, northern Bolivia, southern Paraguay, and Buenos Aires Province, Argentina. After February, a transition from deficit to moderate surplus is forecast for northern Amazonian Brazil.

South America: Widespread water deficits in Brazil to persist but moderate

South America: Widespread water deficits in Brazil to persist but moderate

The near-term forecast indicates that widespread water deficits will persist, though moderate, in Brazil. However, intense deficits are forecast for: Brazil’s far north into Suriname and French Guiana; Ceará and Rio Grande do Norte; north-central and southern Venezuela; Cochabamba, Bolivia; northern Chile; and Tierra del Fuego. Surpluses will persist in La Pampa and Buenos Aires Provinces, Argentina, and will emerge in Uruguay. After November deficits will retreat to eastern Brazil and surpluses will emerge in the northern Amazon Basin.

South America: Exceptional water deficits persist in central Brazil

South America: Exceptional water deficits persist in central Brazil

South America is forecast to transition away from widespread exceptional water deficits after October. However, until then exceptional deficits are forecast for much of Brazil north of Rio, along with deficits of varying severity elsewhere in South America. By December the extent of exceptional water deficits in Brazil will diminish except along the Amazon River and in Amapá and Maranhão. From November on moderate deficits are forecast in Colombia, Venezuela, Guyana, Suriname, French Guiana, Ecuador, Peru, Chile, and Rio Grande do Sul, Brazil.

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Is the Past Decade of Persistent Drought In Brazil a New Normal?

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A sixty-year record of extreme weather conditions shows a disturbing pattern of deficit surface water conditions throughout Amazonia.The Water Security Indicators Model (WSIM) developed by ISCIENCES LLC is used to examine average monthly hydrological conditions throughout the basin. An apparent correlation with the emergence of temperature extremes over the same period begs the question whether man-made climate change is the root cause.The literature however points to man-made deforestation as the critical factor, raising concern that "the Amazon is losing the ability to control it's own climate." If true, consequences will have profound impact on the region and the global environment.

Many analyses reported in ISciences-authored blog posts are based on data generated by the ISciences Water Security Indicator Model (WSIM). Other sources, if used, are referenced in footnotes accompanying individual posts. WSIM is a validated capability that produces monthly reports on current and forecast global freshwater surpluses and deficits with lead times of 1-9 months at 0.25°x0.25° resolution. This capability has been in continuous operation since April 2011 and has proven to provide reliable forecasts of emerging water security concerns in that time-frame. WSIM has the ability to assess the impacts of water anomalies on people, agriculture, and electricity generation. Detailed data, customized visualizations, and reports are available for purchase.

For more information contact info@isciences.com.

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